Table of Contents Index Operator Manual 4-, 6- and 8-Row YP425A3P, YP625A3P & YP825A3P 3-Point Yield-Pro® Air Planters ® with Air-Pro Seed Meters Manufacturing, Inc. www.greatplainsmfg.com Read the operator manual entirely. When you see this symbol, the subsequent instructions and warnings are serious - follow without exception.
401-652M Table of Contents Index Table of Contents Index 2015-01-26
Great Plains Manufacturing, Inc. Table of Contents Index iii Table of Contents Important Safety Information ......................................1 Safety Decals .................................................................6 Introduction ................................................................10 Intended Usage ........................................................10 Document Family.....................................................10 Definitions...........................................
iv YP4-6-825A3P Table of Contents Alternate Meter Clean-Out ................................... 76 Meter Brush Maintenance............................................ 77 Meter Brush Replacement ....................................... 78 Seed Disk Maintenance ........................................... 79 Cleaning and Storing Seed Disks ........................ 79 Speed Sensor Gap ...................................................... 79 Air Box Residue Clean-Out..........................................
Great Plains Manufacturing, Inc. Table of Contents Index 1 Index 401-652M Important Safety Information Look for Safety Symbol The SAFETY ALERT SYMBOL indicates there is a potential hazard to personal safety involved and extra safety precaution must be taken. When you see this symbol, be alert and carefully read the message that follows it.
2 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Index 2015-01-26 Wear Protective Equipment Great Plains advises use of the following personal safety equipment. ▲ Hearing protection, such as earmuffs or earplugs, for making planter adjustments with the hydraulic fan running.Prolonged exposure to loud noise can cause hearing impairment or loss. Avoid wearing entertainment headphones while operating machinery.
Great Plains Manufacturing, Inc. Table of Contents Index Important Safety Information 3 Transport Machinery Safely Maximum transport speed for implement is 20 mph (32 kph), 13 mph (22 kph) in turns. Some rough terrains require a slower speed. Sudden braking can cause a towed load to swerve and upset. ▲ Do not exceed 20 mph. Never travel at a speed which does not allow adequate control of steering and stopping. Reduce speed if towed load is not equipped with brakes. ▲ Comply with state and local laws.
4 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Index 2015-01-26 Handle Chemicals Properly Agricultural chemicals can be dangerous. Improper use can seriously injure persons, animals, plants, soil and property. ▲ Read and follow chemical supplier instructions. ▲ Wear protective clothing. ▲ Handle all chemicals with care. ▲ Agricultural chemicals can be dangerous. Improper use can seriously injure persons, animals, plants, soil and property.
Great Plains Manufacturing, Inc. Table of Contents Index Important Safety Information 5 Practice Safe Maintenance ▲ Understand procedure before doing work. Use proper tools and equipment. Refer to this manual for additional information. ▲ Work in a clean, dry area. ▲ Lower the planter, put tractor in park, turn off engine, and remove key before performing maintenance. ▲ Make sure all moving parts have stopped and all system pressure is relieved. ▲ Allow planter to cool completely.
6 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Safety Decals Safety Reflectors and Decals Your implement comes equipped with all lights, safety reflectors and decals in place. They were designed to help you safely operate your implement. To install new decals: ▲ Read and follow decal directions. 2. Peel backing from decal. Press firmly on surface, being careful not to cause air bubbles under decal. ▲ Keep lights in operating condition. 1.
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8 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. 818-323C Danger: Possible Chemical Hazard On the underside of each hopper lid; 4 to 16 total 29998 818-337C Warning: Speed On front of main tool bar to left of hitch; 1 total 31003 818-339C Warning: High Pressure Fluid Hazard On right face of 3-point top hitch; 1 total 31003 WARNING SHARP OBJECT HAZARD To prevent serious injury or Death from Sharp Objects: Keep hands, feet, hair, & clothing away from tines.
Great Plains Manufacturing, Inc. Table of Contents Index Important Safety Information 9 818-682C Warning: Markers (Option) On front face of inner marker arm; 2 total 31003 818-587C Caution: Read Operator’s Manual On right face of 3-point top hitch; 1 total 29960 CAUTION To Avoid Injury or Machine Damage from Improper Tire Inflation or Torquing of Wheel Bolts: Maximum inflation pressure of tires is 90 psi. Torque wheel bolts to 120 lb-ft.
10 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Introduction Great Plains welcomes you to its growing family of new product owners. The 4-, 6- and 8-Row 3-Point Yield-Pro® Air Planter (YP425A3P, YP625A3P & YP825A3P) has been designed with care and built by skilled workers using quality materials. Proper setup, maintenance, and safe operating practices will help you get years of satisfactory use from the machine.
Great Plains Manufacturing, Inc. Table of Contents Index Introduction 11 Owner Assistance If you need customer service or repair parts, contact a Great Plains dealer. They have trained personnel, repair parts and equipment specially designed for Great Plains products. Refer to Figure 2 Your machine’s parts were specially designed and should only be replaced with Great Plains parts. Always use the serial and model number when ordering parts from your Great Plains dealer.
12 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Index 2015-01-26 Preparation and Setup This section helps you prepare your tractor and YP425A3P, YP625A3P & YP825A3P Planter for use, and covers tasks that need to be done seasonally, or when the tractor/planter configuration changes. Before using the planter in the field, you must hitch it to a suitable tractor, inspect systems and level the planter.
Great Plains Manufacturing, Inc. Table of Contents Index Preparation and Setup 13 Hitching Tractor to Planter Crushing Hazard: Do not stand or place any body part between planter and moving tractor. You may be severely injured or killed by being crushed between the tractor and planter. Stop tractor engine and set parking brake before attaching cables and hoses. 1. To prevent soil compaction on rows, set tractor wheels at 60 inches center-to-center.
14 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Hydraulic Hose Hookup High Pressure Fluid Hazard: Shut down tractor before making hydraulic connections. Only trained personnel should work with system hydraulics. Escaping fluid under pressure can have sufficient pressure to penetrate the skin causing serious injury. If an accident occurs, seek immediate medical assistance from a physician familiar with this type of injury.
Great Plains Manufacturing, Inc. Table of Contents Index Preparation and Setup 15 Older Style Hoses with Color Ties Refer to Figure 6 and Figure 7 on page 16 Hydraulic hoses are color coded to help you hookup hoses to your tractor outlets. Hoses that go to the same remote valve are marked with the same color tie. Color Hydraulic Function Orange Marker White Fan To distinguish hoses on the same hydraulic circuit, refer to hose label.
16 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Protect Motor Seals Applies to planters with serial numbers: (YP3P425A s/n B1004M-) (YP3P625A s/n B1006P-) (YP3P825A s/n B1007R-) 1. Connect the fan case drain line 1 first, before making any other connections. Connect this line to a low pressure drain port. Note: Case drain hose has the smaller 1⁄4 inch I.D. hose and small, flat-face, low-seep connector. 2. Connect the fan return 2 line second.
Table of Contents Great Plains Manufacturing, Inc. Index Preparation and Setup 17 Raise Parking Stands Refer to Figure 3 3. Use tractor hitch circuit to raise planter slightly off parking stands. 4. Remove hairpin and cross-pin 1. 5. Slide stand tube up until lower storage hole with bracket hole. 2 aligns 6. Insert cross-pin and secure with hairpin. 7. Repeat for other side of planter.
18 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Leveling Planter For row units to function correctly, planter must be: • level from side to side, • level from front to back, and; • at correct tool bar height. Perform this setup on level ground in representative field conditions. 1 Refer to Figure 10 1. Raise planter so that gauge wheels are just off ground. 2. At each gauge wheel, measure the pre-compressed, no-load length of the yoke spring 1 .
Great Plains Manufacturing, Inc. Table of Contents Index Preparation and Setup 19 Monitor Setup Refer to Figure 19 The standard DICKEY-john® PM300 system monitors the following elements of a YP4-6-825A3P planter: • Seeds at each row unit seed tube. • Ground speed. See “Seed Monitor Console Installation” on page 113. Refer to the DICKEY-john® PM300/PM332/PM400 Operator’s Manual for monitor operations.
20 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Operating Instructions This section covers general operating procedures. Experience, machine familiarity, and the following information will lead to efficient operation and good working habits. Always operate farm machinery with safety in mind. Pre-Start Checklist Perform the following steps before transporting the YP4-6-825A3P planter to the field. ❑ Carefully read “Important Safety Information” on page 1.
Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 21 Transport Loss of Control Hazard: Do not transport with insufficient ballast or with an inadequate tractor. Check that your tractor has enough ballast for the weight of the drill. A tractor with insufficient ballast has insufficient traction at the front wheels, causing loss of control, leading to a serious road accident, injury or death. Refer to your tractor operator manual for ballast requirements.
22 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.
Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions Loading Materials 23 2 Hopper Operations (s/n B1014R+) Refer to Figure 15 and Figure 16 Hopper lids 1 : • the lids have two spring clips, one at each end 3. 1 3 • there is a molded handle at the rear end 2 of the hopper lid (although the lid is reversible). Figure 13 Hopper Lid To open a hopper: 32446 1. Grasp the handle and snap lid off. 2.
24 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Loading Materials Hopper Operations (s/n B1013R-) 3 Refer to Figure 15 and Figure 16 Hopper lids 1 have distinct ends: • the hinge end 3 (with two lugs) mates with the front end of the hopper. 1 • the latch end 2 (with a single lug) mates with the rear end of the hopper. Figure 15 Hopper Lid Hinge Lugs 28131 To open a hopper: 1. Pull the rear of the lid edge to the rear. 2. Swing the lid up at rear. 2 1 3.
Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 25 Loading Seed, continued Possible Agricultural Chemical Hazards: Read and follow all supplier cautions for safe handling of treated seed. Irritant and Chronic Exposure Hazards: Do not mix lubricants into seed with hands or any part of body. Wear protective equipment. Use tools. See page 90. 11. Pre-mix seed and lubricant.
26 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Monitor Operation Refer to Figure 19 The standard DICKEY-john® PM300 system monitors the following elements of a YP4-6-825A3P planter: • Seeds at each row unit seed tube: Medium and larger seeds are individually counted with high accuracy. Small seed sensing may be limited to seed stoppage (“blockage”) detection.
Table of Contents Great Plains Manufacturing, Inc.
28 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Air and Seeding System Overview 8 Refer to Figure 20, on page 27, and Figure 21. The hydraulic fan 1 supplies air exclusively for meter operation. Fan rpm is operator-adjusted (page 31), normally via the tractor circuit’s hydraulic flow control. 4 A manually-adjusted butterfly valve 2 is provided at the fan outlet. See page 31 for valve adjustment. The manifold system 3 delivers fan air across the planter.
Table of Contents Great Plains Manufacturing, Inc. Index Operating Instructions 29 Fan Circuit Operation (S/N-) Applies to planters with serial numbers: (YP3P425A s/n B1004M-) (YP3P625A s/n B1006P-) (YP3P825A s/n B1007R-) 4 See also “Fan and Adjustment” on page 43. Refer to Figure 22 Three hydraulic hoses serve the fan, and must be properly connected for the fan to operate in the correct direction 1 , at recommended speeds, and without damage. See “Hydraulic Hose Hookup” on page 14. 1.
30 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Fan Circuit Operation (S/N+) Applies to planters with serial numbers: (YP3P425A s/n B1005M+) (YP3P625A s/n B1007P+) (YP3P825A s/n B1008R+) See also “Fan and Adjustment” on page 43. 1 3 Refer to Figure 23 Operating flow Shut-off flow (fan coasting to stop) Two hydraulic hoses serve the fan, and must be properly connected for the fan to operate in the correct direction 1 , and at recommended speeds.
Great Plains Manufacturing, Inc. Table of Contents Index Fan General Operating Information Adjust the fan to provide the meter pressurization recommended for the seed disk, seed, and seed density. See the tables and charts for recommended values in the Seed Rate Manual. Operating Instructions 70° 45° Normal gauge readings are in the 0.8 inch to 4.0 inch water pressure range, and vary considerably with crop.
32 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Air-Pro® Meter Operation 1 Refer to Figure 26 The meter disk is driven, top forward, by a chain drive (not shown) always connected to the section drive shaft. At non-planting rows, use a blank disk (page 59). 5 Seed is air-delivered to the inlet above the air release screen 1 . Seed customarily fills to the top of the screen, blocking further air flow from the seed delivery system, until the seed level falls below the screen.
Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 33 Marker Operation (Option) S/NTHIS PAGE APPLIES ONLY TO MODELS: (YP3P425A s/n B1004M-) (YP3P625A s/n B1006P-) (YP3P825A s/n B1007R-) Before Operating Markers • Make sure cylinders are properly bled. See “Marker Maintenance (Option)” on page 82. • This section presumes correct marker extension for your pass spacing. If this has not been set, or needs to be changed, see “Marker Extension” on page 115.
34 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Marker Operation (Option) S/N+ THIS PAGE APPLIES ONLY TO MODELS: (YP3P425A s/n B1005M+) (YP3P625A s/n B1007P+) (YP3P825A s/n B1008R+) Before Operating Markers • Make sure cylinders are properly bled. See “Marker Maintenance (Option)” on page 82. • This section presumes correct marker extension for your pass spacing. If this has not been set, or needs to be changed, see “Marker Extension” on page 115.
Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 35 Field Set-Up Checklists Use the following tables to develop a final checklist for your tractor/planter configuration. Mechanical Checklist (Hitching) Page Planter hitched Parking stands raised Additional or fewer steps may be necessary depending on tractor features, planter options and planting accessories. Air System Checklist 13 17 Electrical Checklist Fan butterfly valve set Seed loaded. Lids closed.
36 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Field Operation Perform all steps in “Pre-Start Checklist” on page 20 and “Field Set-Up Checklists” on page 35. First Pass Operation Checklist 1. 2. 3. 4. 5. 6. 7. 8. Slide gates open. Shutters set. Raise planter and line up at start of first planting row. Prime meters with seed. Leave fan running. Unfold marker on next-row side. Pull forward, lower planter, and begin planting for a short distance. Stop.
Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 37 Short-Term Parking Long-Term Storage 1. Fold markers (page 33). 1. Complete Parking steps (page 37). Park the planter indoors if possible. 2. Choose a location with level firm ground. Do not unhitch on a steep slope. 3. Raise planter to just off ground. 4. Lower parking stands to ground and pin (page 17). 5. Lower planter. 6. Set hydraulic circuits to neutral. 7. Disconnect hydraulic lines.
38 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Adjustments To get full performance from your YP425A3P, YP625A3P & YP825A3P planter, you need an understanding of all component operations, and many provide adjustments for optimal field results. Some of these have been covered earlier in this manual. Adjustment Even if your planting conditions rarely change, some of these items need periodic adjustment due to normal wear.
Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 39 Setting Material Rates Full details on rate setting sprocket selection and installation are found in the Seed Rate Manual (pub. number 401-651B). This is a summary. Setting the seeding rate requires the following steps: 1. monitor setup 2. seed disk selection, 3. drive speed Range sprockets, 4. Transmission sprockets, 5. inlet shutters 6. meter pressurization, 7. checking seeding rate.
40 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. 3. Rate: Range Sprockets Range sprockets provide coarse control of seed rate. Refer to Figure 29 and Figure 30 All Seed Rate charts specify a DRIVING and DRIVEN sprocket combination for the Range. Crops with more than one range are noted as “LOW RANGE” or “HIGH RANGE” at the top of the chart. 3 DRIVING To change Range: a. Loosen the bolt securing the idler plate Disengage the idler. Remove the chain. b. c. 3.
Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 5. Rate: Seed Inlet Shutter A consistent seed results from having a consistent number of seeds (usually one) in each pocket of the seed disk, avoiding “skips” (fewer seeds per pocket) and “doubles” (excess seed per pocket). 41 5 Refer to Figure 31 One of the factors that affects seed pickup at the disk is having an optimal seed pool (page 56). The depth of the seed pool is controlled by the seed inlet shutter 5 .
42 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Marker Adjustments (Option) See also: • “Initial Marker Setup (Option)” on page 114 for marker speed and marker extension • “Marker Operation (Option) S/N-” on page 33; and, • “Marker Maintenance (Option)” on page 82 for marker shear bolt and marker hydraulic bleeding Marker Disk Adjustment Sharp Object Hazard: Use caution when making adjustments in this area. Marker disks may be sharp.
Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 43 Fan and Adjustment 1. These steps presume that correct seed disks are installed (per Seed Rate Manual), and the seed inlet shutters are set for the seed (page 55). 2 2. With fan off, check meter pressurization reported by the Magnehelic®a gauge. Re-zero as needed. 3 3. Determine the recommended meter pressurization based on your own notes or the published value in the Seed Rate Manual. 4. Put tractor in Park and set brakes.
44 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. 10. Resume planting. A small varying population deviation between rows is normal. If a row is consistently running lower or higher than the other rows, it could indicate a meter or seed sensor problem that needs attention. “Population Troubleshooting Charts” on page 67. 11. Continue to monitor meter pressurization. When oil reaches operating temperature, fan speed can change.
Table of Contents Great Plains Manufacturing, Inc. Index Adjustments 45 Gauge Wheel Adjustments The minimum tool bar height is limited by the gauge wheels. In some conditions, such as ridge planting, you may need to use a tool bar height lower than 26 inch. Refer to Figure 36 There are two adjustments for this at the gauge wheels. 1 • Gauge wheel yoke spring length 1 : This provides a variable height reduction of up to 2.2 inch (5.6 cm). • Axle hole change 2 : This provides a 2 inch (5.
46 YP4-6-825A3P Table of Contents Index 25AP Series Row Unit Adjustments Refer to Figure 38 (which depicts a row unit populated with most optional accessories supported for use with the YP425A3P/625A3P/825A3P Air Planter) From front to back, a Great Plains 25 Series Air-Pro® row unit can include the following capabilities (some optional): Great Plains Manufacturing, Inc. 3 2 4 8 5 1 6 7 9 1. Lock-Up Pin Storage Hole (Hole Standard) See “Row Unit Shut-Off” on page 58. 2.
Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 47 Row Unit Down Pressure Refer to Figure 39 The ideal amount of down-force causes the side gauge wheels to compress any loose surface soil, but not press a trench into subsoil. { To assess down-force, operate the planter for a short distance on typical ground (with or without seeding), and stop. Leave the planter lowered (row units in ground).
48 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. An adjuster cam 2 sets down pressure individually for each row unit. This is useful for penetrating hard soil and planting in tire tracks. For best results always adjust tractor tires so they are not ahead of 30 inch rows.
Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 49 Unit-Mount Cleaner Adjustments Refer to Figure 45 and Figure 46 Optional Martin row cleaners are unit-mounted, using: UMRC: Unit-Mount Row Cleaner (stand-alone), or UMC-RC: Unit-Mount Coulter RC (on coulter bracket, with or without a coulter disk present). 1 2 There are two adjustments: 1. Wheel placement (forward or aft mounting hole, for more or less aggressive cleaning), and 2. Wheel height, adjusted by a stop.
50 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. UMC Coulter Adjustments Note: Coulters are not factory-installed. Check alignment and depth prior to first use. UMC Coulter Depth Adjustment The ideal operating depth for coulters is 1⁄4 inch (6 mm) above opener depth. Although they may have originally been set to this depth, coulter (and opener) blades wear with time, and may need adjusting.
Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 51 Coulter Row Alignment Refer to Figure 49 For unit-mounted coulters, the ideal alignment is for the blade to open a furrow directly ahead of the opener discs. As a check on coarse alignment, sight along the coulter blade center-line 1 , the gap between the opener blades 2 , and the center-line between the press wheels 3 .
52 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Row-Unit Opener Disk Adjustments 1 25 Series openers have three adjustments: 1. planting/seed depth 3 2. opener disc to disc clearance 3. gauge wheel/opener disk clearance (page 53) Setting Planting Depth Refer to Figure 51 The “T” handle 1 sets planting depth by limiting the how high the side depth gauge wheels ride relative to the opener disks.
Table of Contents Great Plains Manufacturing, Inc. Side Gauge Wheel Adjustment Refer to Figure 54 and Figure 55 Disc-to-wheel angle and clearance ideally has the wheel just touching the disk when the wheel is raised to planting depth (is up against the stop set by the “T” handle. The goal is to have both disks and wheels turn freely, but keep soil and trash from getting between them. Index Adjustments Side Gauge Wheel 53 Side Gauge Wheel Opener Disks These two adjustments interact with each other.
54 YP4-6-825A3P Table of Contents Index • If wheel does not fall freely, loosen hex-head bolt 1 and slide wheel arm out just until wheel and arm move freely. Retighten hex-head bolt 1 according to grade: 1⁄ inch Grade 5 bolt on 25 series: 2 75 foot-pounds (102 N-m). 1⁄ inch Grade 8 bolt on 25 series: 2 110 foot-pounds (149 N-m). Great Plains Manufacturing, Inc. 1 3 2 1 Note: Use “Torque Values Chart” on page 103 for reference. 6.
Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 55 Seed Meter Setup and Adjustment There are adjustments for seed inlet, and choice of disks. There are no other adjustments, in particular no brush adjustments, at the meter. 1 Meter Rain Cover The rain cover keeps side winds from unseating seed in disk pockets. It also keeps precipitation, sunlight and field debris out of the meters.
56 YP4-6-825A3P Table of Contents Index Optimal Seed Pool Slopes The optimal seed slope is one that results in the most consistent seeding, with minimal skips and doubles. The column at right has photographs of pool slopes found to be optimal for representative seeds. Great Plains Manufacturing, Inc. 8:00 If the suggested initial shutter settings do not seem to be working for your seed, adjust the shutter to achieve specific reserve slope targets.
Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 57 Air-Pro® Meter Disk Installation 1. Cross-check Seed Rate Chart data against part number/description molded into disks to be used. 2 1 Population Risk: Use the same disk in all active rows. 2. Inspect disks to be installed. Do not install damaged or excessively worn disks. Either can cause irregular seeding. Chips and cracks accelerate brush wear. 3. Remove meter rain cover (page 55).
58 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Removing a Seed Disk Refer to Figure 67 1. Remove rain cover. If seed is present, close shutter 4 to prevent more seed from entering meter. Attach funnel (page 76) or place a tarp under the row to collect seed. 2. Hold seed disk in meter. Rotate disk clamp counterclockwise 45° to release disk. 3 1 4 3. Tilting top of disk toward meter, slowly remove disk, allowing seed to collect in funnel or to control flow to tarp.
Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 59 1. Identify Rows to Shut Off On twin-row planters, openers are installed with short and long opener mounts. If locking up unused rows of a twin-row planter, shut off the rear (long mount) rows. On single-row planters with mid-length mounts, any rows may be locked up. If not locking up rows, any rows may be shut off. 2. Close Seed Shutter Refer to Figure 68 on page 58 Lift the handle 2 away from the plate.
60 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. 1. Raise the planter. Although this adjustment can be made with the planter lowered, the springs will be in tension, and will require more effort. The extra force may also damage tools. 2. Install lift assist cylinder locks. Lower parking stands. 3 3. Set the down pressure spring cam to zero, per the instructions on page 48. 4. Raise the row unit high enough that the hole for the pin is above the lower parallel arm.
Table of Contents Great Plains Manufacturing, Inc. Index Adjustments 61 Seed Firmer Adjustments Series 25 row units include a standard seed flap, and accept one of two optional seed firmers (which may be included in your selected opener bundle). Row unit disk blades may be sharp. Use caution when making adjustments in this area. To adjust the Keeton Seed Firmer, lower the planter until the disks of the row units are resting on the ground.
62 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Press Wheel Adjustment The press wheels close the furrow which gently presses the soil over the seed to ensure good seed-to-soil contact for even emergence. To provide consistent seed firming, the press wheels are free to move downward from their normal operating position. This system maintains closing/pressing action even if the row unit arm is lifted when the disks encounter obstructions.
Table of Contents Great Plains Manufacturing, Inc. Index Press Wheel Centering If one press wheel is running in the seed trench, or the wheels are not centered over the trench, the angle 1 of the press wheel assembly can be adjusted as follows: Adjustments 3 2 63 1 Refer to Figure 76 1. Determine how far, and in which direction, the press wheel assembly needs to move to center the wheels. 2. Raise planter. Secure with blocks or jack stands. 3. Loosen the 1⁄2 inch hex-head bolts 2 and 3 .
64 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Troubleshooting Planting Rate Problems When starting up with a new planter, a new crop or a new population it is important to physically double check what the monitor is reporting in the cab by digging seeds. This is to verify that you are set up correctly to plant the desired population. Do not rely solely on the population reported by the optional seed monitor.
Table of Contents Great Plains Manufacturing, Inc. Index Troubleshooting 65 Seed Pool Troubleshooting 1 Figure 77 Rear Cross-Section of Air-Pro® Meter in Normal and Row-Failed Conditions Normal: Filled Bridging: Inlet Shutter Inlet is filled to seed box. A bridge at the shutter is Seed move slowly down as blocking flow. singulated by meter. Causes may include: • oversize seed Actions: No action required. Continue Planting.
66 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Magnehelic® Gauge Troubleshooting If the Magnehelic® gauge does not read zero with the fan off, inspect the gauge, and re-zero as needed.
Table of Contents Great Plains Manufacturing, Inc. Index Troubleshooting 67 Population Troubleshooting Charts Population Too Low Problem Overall Low Population Cause Solution Incorrect seed rate Using Seed Rate Manual, check: • seed disk selection, • Range/Transmission sprocket setup, and • tire size and inflation. Empty pockets on disk (skips) due to insufficient air pressure. Methodically increase the meter pressurization. See “Fan and Adjustment” on page 43.
68 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Population Too Low Problem Cause Solution Pass gaps too large Overall Low Population, Actual field size is different cont. Seed monitor reporting excess area Check marker extension (page 115). For GPS, check planter size programmed. Population may be correct, and calculations are not. Readings can vary with conditions (wheel slippage, and effective rolling radius in soft soils) and planting patterns.
Table of Contents Great Plains Manufacturing, Inc. Index Troubleshooting 69 Population Too High Problem Cause Solution Overall High Air pressure too high, but gauge is within Check: • Inspect the 1⁄4 inch sample lines from the row units up Population, range or reading low. to the sensor chamber for leaks (page 66). cont. • Make sure all non-planting rows have blank disks (page 59). • Check that rubber pressure relief plug is seated in gauge (page 66).
70 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Population Related Problem Cause Solution False alarms or actual rate errors due to monitor setup with incorrect [active] row count or spacing When troubleshooting population issues, always first rule out seed monitor setup. Review planter configuration and monitor setup. Incorrect cell count Replace seed disks with correct disks, or reset rate for current disks (if within range). Improper gap on magnetic speed sensor.
Table of Contents Great Plains Manufacturing, Inc. Index Troubleshooting 71 Population Related Problem Twin Rows were timed but became out of time. Cause Solution Timing will change when a population change has been made. Re-time meters from the population based timing chart. Chain has jumped. Check sprockets and chain for excessive wear or rusty stuck links. General Troubleshooting Problem Population Alarms Cause Solution See “Population Troubleshooting Charts” on page 67.
72 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. General Troubleshooting Problem Cause Solution Uneven seed depth Excessive field speed. Reduce field speed. Planting conditions too wet. Wait until drier weather. Incorrect coulter depth setting. See coulter manual or set unit mounted coulter. Excessive or improper row unit down See “Row Unit Down Pressure” on page 47. pressure spring setting. Damaged seed tubes. Check seed tubes for damage.
Table of Contents Great Plains Manufacturing, Inc. Index Troubleshooting 73 General Troubleshooting Problem Cause Solution Marker/Fold switch set to Fold. CFM Switch must be set to “Marker”. Set tractor remote circuit to Neutral or Float before operating switch. Marker/Aux valve set to Aux On a planter with optional Auxiliary Hydraulics, selector valve must be set to Marker for markers to function. Set tractor remote circuit to Neutral or Float before changing valve.
74 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Index 2015-01-26 Maintenance and Lubrication Maintenance Proper servicing and maintenance is the key to long implement life. With careful and systematic inspection, you can avoid costly maintenance, downtime, and repair. Always turn off and remove the tractor key before making any adjustments or performing any maintenance. Crushing Hazard: Always have transport locks in place when working on implement.
Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 75 Material Clean-Out When planting is completed, it is commonly the case that some seed remains. There may be seed in the hoppers, hose lines, and meters. Refer to Figure 79 The planter includes an 817-811Ca container 1 for meter clean-out, stored in a spring-loaded holder at the right rear of the air manifold. The container can hold all the seed in the meter and inlet (up to a closed slide gate).
76 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Meter Clean-Out Refer to Figure 81 The 817-811C seed collection accessory (funnel 1 ) may be attached to the housing of the seed meter, freeing your hands for other tasks during clean-out. 5 7 Note: The funnel does not fit rows to the left of gauge wheels on twin-row planters. Use vacuum or tarp collection on those rows. Note: It may be necessary to raise a twin-row planter to obtain clearance for the funnel.
Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 77 Meter Brush Maintenance Possible Chemical Hazard: Wear a respirator for brush cleaning. Brushes will have talc and graphite residue, and may have residues of hazardous seed treatments. Refer to Figure 82 A HEPA vacuum cleaner is recommended for brush cleaning. Washing brushes is not recommended and may cause matting. Do not scrape them with sharp instruments.
78 YP4-6-825A3P Table of Contents Meter Brush Replacement Index Great Plains Manufacturing, Inc. 12 Consult the Parts manual (401-652P) for current replacement part numbers. 15 19 13 Refer to Figure 83 Tufted Brush Replacement 1. Remove and save both 10-24 hex head cap screws 11 and nylock nuts (not shown). 2. Remove the tufted brush assembly with new assembly. 12 , 14 16 and replace 11 3. Re-insert the 10-24 screws, and re-start the nylock nuts.
Table of Contents Great Plains Manufacturing, Inc. Index Maintenance and Lubrication 79 Seed Disk Maintenance Refer to Figure 85 When removing seed disks, inspect them for wear and damage. If there is any seed dust or treatment build-up in the cell pockets 1 , or along the raised wiper ridges 2 , clean the disks and re-inspect. 4 2 1 1 Replace disks for conditions including: • Chips at circumference 3 3 . These will leak air. • Chips at edges or in sculpted surfaces of cell pockets 1 .
80 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Air Box Residue Clean-Out Planting in extremely dusty conditions, particularly dusty and humid conditions, or otherwise sticky soils, can lead to air residue build-up inside the airbox. This residue can cause seed delivery blockages.
Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 81 Hydraulic Maintenance As with any hydraulic system, contamination is the most common cause of performance problems and pre-mature wear. Make a special effort to properly clean quick couplers prior to attaching the hoses to tractor, and never let them fall to the ground. Bleeding Marker Hydraulics To fold properly, the marker hydraulics must be free of air. If the markers fold in jerky, uneven motions.
82 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Marker Maintenance (Option) See also: “Initial Marker Setup (Option)” on page 114, “Marker Operation (Option) S/N-” on page 33, and “Marker Disk Adjustment” on page 42 3 2 Marker Shear Bolt Replacement Refer to Figure 90 If a marker gets caught or hits an obstruction, it is designed to fail a shear bolt 3 at the fold, pivot on a second bolt (not visible in Figure), and swing back.
Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 83 Chain Maintenance Inspect and lubricate chains regularly. The slack of new chains tends to increase during the first few hours of operation due to seating. 1 See also “Chain Routing” on page 107. Chain Slack 2 Check slack at fixed idlers within the first 8 hours of operation and tighten idlers as necessary. Check slack at spring-operated idlers seasonally.
84 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Spreaders and Scrapers Note: Applies to all row unit Series. Refer to Figure 94 1. Remove side gauge wheels from arms to access row-unit disks and scrapers. Note: It is normal for the blade spreader to have some looseness in the holder and between the blades. Some looseness is required for proper operation. 2. With the unit raised, check blade spreader 1 for wear. Replace spreader if it is 1⁄2 inch (13 mm) wide or narrower.
Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 85 Seed Flap Replacement Refer to Figure 96 To replace a seed flap 1 , use a needle nose pliers or similar tool to grasp “T” top of flap. Pull upward to pull flap up out of metal bracket 2 . Push new seed flap 1 down through metal bracket 2 until flap snaps into place with “T” top resting on top of bracket.
86 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.
Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 87 Chain: Contact Drive As Required 1 chain Type of Lubrication: Chain Lube Quantity = Coat thoroughly Note: Lubricate chains any time there is a chance of moisture, and when being stored at the end of the planting season.
88 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Chain: Transmission Drive As Required 1 chain Type of Lubrication: Chain Lube Quantity = Coat thoroughly Note: Lubricate chains any time there is a chance of moisture, and when being stored at the end of the planting season. 29884 Ground Drive Wheel Hub 50 1 zerk at each bearing casting; 4 total Type of Lubrication: Grease Quantity: Until grease resistance felt Re-pack seasonally.
Great Plains Manufacturing, Inc.
90 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Seed Lubricants To maximize performance of Great Plains metering systems, it is imperative to use “Ezee Glide Plus” or Bayer Seed Fluency Agent. Ezee Glide Plus Talc+Graphite Mix 821-069C bucket, 5 gallon (19 liter) Ezee Glide Plus Lubricant “Ezee Glide Plus”is suitable for all seeds, especially treated or inoculated seed, except where talc and graphite mixes are prohibited.
Great Plains Manufacturing, Inc. Table of Contents Index 91 Options Dual Sequenced Markers A marker system includes hydraulic cylinder, marker arm and mount for left and right side, plus an automatic sequence valve that controls which side activates, and at what speed. The marker system requires one tractor remote. The system is factory installed, but ordered as a separate line item.
92 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Row-Mounted Accessories Lock-Up Pins If rows are shut off, you can reduce unnecessary wear on the unused row units by locking them up. Twin-row planters include, as standard, one lock-pin per rear row. For replacement pins, or for other planter models, order one per row unit locked-up. Description Part Number PIN HITCH 1 X 6 W/HAIRPIN 805-033C 27226 See “Row Unit Shut-Off” on page 58.
Great Plains Manufacturing, Inc. Table of Contents Index Options 93 Unit-Mounted Disk Coulters Optional unit-mount disk coulters are available with 15 inch fluted or 15 inch turbo blades.
94 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Seed Meter Disks Air-Pro® meters accept a variety of seed disks, plus a special blank disk for row shut-off. Choices include: Meter Disks Part No.
Table of Contents Great Plains Manufacturing, Inc. Index Options 95 Gauge Wheel Scrapers When planting in moist or sticky soils, these scrapers are useful in preventing build-up that might otherwise result in shallow planting. Order one part per wheel (2 per opener). Wheel Scrapers Part Number 21⁄2 inch (6.4 cm) scraper 404-194D 3 inch (7.6 cm) scraper 404-195D 4 inch (10.2 cm) scraper 404-196D The scrapers mount on the bottom rear of the depth wheel arm, using existing hardware.
96 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Row Unit Press Wheels The base Yield Pro planter includes a choice of press wheels. Additional wheels are available, and all may be field-installed. This manual does not list kit part numbers as the available wheels are often region-specific. Consult your Great Plains dealer. For operations, see: “Press Wheel Adjustment” on page 62.
Table of Contents Great Plains Manufacturing, Inc. Index 97 Appendix A - Reference Information Specifications and Capacities YP425A3P Single-Row Data Model YP425A3P -0470 YP425A3P -0430 YP425A3P -0436 YP425A3P -0438 YP425A3P -0440 38 inches 40 inches 4 Row Count Row Spacing 70.0 cm 30 inches Width, no Markers 306.1 cm 10 ft. 0.5 in. 15 ft. 0.5 in. Width, with Markers 342.9 cm 11 ft. 3 in. 16 ft. 3 in. 210 cm 90 inches 108 inches 114 inches 120 inches 280.0 cm 120.0 inches 144.
98 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. YP425A3P Twin-Row Data Model YP425A3P -08TR YP425A3P -0836 YP425A3P -0840 8 (4 twin) Row Count Row Spacing YP425A3P -0838 30 in. 36 in. 38 in. 40 in. 10 ft. 0.5 in. 15 ft. 0.5 in. Width, with Markers 11 ft. 3 in. 16 ft. 3 in. Span (between end rows) 90 inches 108 inches 114 inches 120 inches 120.0 inches 144.0 inches 152.0 inches 160.
Great Plains Manufacturing, Inc. Table of Contents Index Appendix A - Reference Information 99 YP625A3P Single-Row Data Model YP625A3P -0670 YP625A3P -0630 YP625A3P -0636 YP625A3P -0638 YP625A3P -0640 38 inches 40 inches 6 Row Count Row Spacing 70.0 cm 30 inches Width, no Markers 458.5 cm 15 ft. 0.5 in. 20 ft. 0.5 in. Width, with Markers 495.3 cm 16 ft. 3 in. 21 ft. 3 in. Span (between end rows) 350.0 cm 150 inches 180 inches 190 inches 200 inches Swath (Channel Width) 420.
100 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. YP625A3P Twin-Row Data Model YP625A3P -12TR YP625A3P -1236 YP625A3P -1240 12 (6 twin) Row Count Row Spacing YP625A3P -1238 30 inches 36 inches 38 inches 40 inches 15 ft. 0.5 in. 20 ft. 0.5 in. Width, with Markers 16 ft. 3 in. 21 ft. 3 in. Span (between end rows) 150 inches 180 inches 190 inches 200 inches 180.0 inches 216.0 inches 228.0 inches 240.
Great Plains Manufacturing, Inc. Table of Contents Index Appendix A - Reference Information 101 YP825A3P Single-Row Data YP825A3P -0870 YP825A3P -0830 YP825A3P -0836 Row Spacing 70.0 cm 30 inches 36 inches Width, no Markers 610.9 cm 20 ft. 0.5 in. 25 ft. 10.5 in. Width, with Markers 647.7 cm 21 ft. 3 in. 27 ft. 1 in. Span (between end rows) 490.0 cm 210 inches 252 inches 266 inches 280 inches Swath (Channel Width) 560.0 cm 240.0 inches 288.0 inches 304.0 inches 320.
102 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. YP825A3P Twin-Row Data Model YP825A3P -16TR YP825A3P -1636 30 inches 36 inches YP825A3P -1640 16 (8 twin) Row Count Row Spacing YP825A3P -1638 38 inches 40 inches 20 ft. 0.5 in. 25 ft. 10.5 in. Width, with Markers 21 ft. 3 in. 27 ft. 1 in. Span (between end rows) 210 inches 252 inches 266 inches 280 inches 240.0 inches 288.0 inches 304.0 inches 320.
Table of Contents Great Plains Manufacturing, Inc. Index Appendix A - Reference Information 103 Torque Values Chart Bolt Head Identification Bolt Head Identification Bolt Size Bolt Size Grade 2 in-tpia Grade 5 Grade 8 10.9 Class 5.8 Class 8.8 Class 10.9 ft-lb N-m ft-lb N-m ft-lb 4 3 6 5 9 7 7 5 11 8 15 11 17 12 26 19 36 27 18 13 28 21 39 29 33 24 52 39 72 53 M10 X 0.75 39 29 61 45 85 62 70 M12 X 1.75 58 42 91 67 125 93 105 78 M12 X 1.
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Great Plains Manufacturing, Inc. Table of Contents Chain Routing Index Appendix A - Reference Information 107 Legend: See also “Chain Maintenance” on page 83.
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110 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. 25AP Final Meter Drive Legend: 0 Sprocket or idler Tooth count 34T 56P 1 Chain Pitch count 19T Direction of chain in motion 12T 94P 2 29619 25P: Meter Drive (Front type) Note: 0 1 2 No idlers on mount.
Great Plains Manufacturing, Inc. Table of Contents Index 111 Appendix B - Pre-Delivery This Appendix covers setup tasks performed by the dealer prior to delivery. These items need to be completed prior to any items in Appendix C (some of which may also be performed by the Great Plains dealer). a. Partially deploy ground drive (this page). b. Install press wheel assemblies (page 112). c. Engage ground drive spring (page 112).
112 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Install Press Wheel Assemblies To meet highway clearance requirements, press wheel arms and wheels may not be factory-installed. 3 Refer to Figure 98 4. Remove and save the 1⁄2-13x1 inch hex head bolt and washer 2 at the back of an incomplete row unit 3 . 1 There are four bolts at this location. Remove only the hex head bolts. Do not loosen or remove the square head bolts forward. 5.
Great Plains Manufacturing, Inc. Table of Contents Index 113 Appendix C - Initial Setup This Appendix covers setup tasks performed only once, or at infrequent intervals. Routine setup tasks are covered in “Preparation and Setup” on page 12. Perform Appendix B tasks first. Some of these items may already have been done by your Great Plains dealer: a. Seed monitor console installation (below) b. Marker setup (Option, page 114) c. Scrapers (Option, page 117) Post-Delivery Checklist 1.
114 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Initial Marker Setup (Option) Marker Speed Adjustment Overhead Sharp Object and Crushing Hazards: Never allow anyone near the planter when folding or unfolding the markers. You may be injured if hit by a folding or unfolding marker. Markers may fall quickly and unexpectedly if the hydraulics fail. Marker discs may be sharp.
Great Plains Manufacturing, Inc. Table of Contents Index Appendix C - Initial Setup 115 Marker Extension Marker extension needs to be adjusted once for the initial YP425A3P, YP625A3P & YP825A3P planter setup, and later only if changing row spacing (including row shut-off for single-row operation on a twin-capable planter). 1. Move the planter to a location where both markers may be safely unfolded. Lower the planter. Pull forward and lower the row units into the ground.
116 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. Marker Extension Table Planter Model Spacing Used Marker Extension Left Right YP425A/3P Standard: -0470 70cm Single 175.0 cm YP425A/3P Standard: -0430 30in Single 75.0 in (190.
Great Plains Manufacturing, Inc. Table of Contents Index Appendix C - Initial Setup 117 122-278S Scraper Installation 91 84 Optional carbide disc scrapers are not factory installed. Start with row 1 (left-most row unit). 3 5 Note: If a Keeton seed firmer is also installed, see the Parts Manual for assembly details. 2 Note: This scraper is not compatible with Seed-Lok®. Refer to Figure 105 and Figure 106 1. Remove one or both opener disc blades to gain safe access to the mount 1 .
118 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc. 2-Year Limited Warranty (Yield-Pro Planters) Great Plains Mfg., Inc. warrants to the original purchaser that this seeding equipment will be free from defects in material and workmanship for a period of one year from the original purchase date when used as intended under normal service conditions for personal use.
Table of Contents Great Plains Manufacturing, Inc. Index 119 Index A ABS .................................................. 75 address, Great Plains ...................... 11 adjustments ...................................... 38 Air Design ...................................... 117 air release screen ............................ 32 air system ......................................... 27 Air-Pro® .................................. 10, 32 Air-Pro® meter .................................
120 YP4-6-825A3P furrow check ..................................... 43 G gap, speed sensor ........................... 79 gauge wheel .................................... 45 gauge wheel scraper .............. 54, 95 gauge, pressure ............................... 43 gloves ................................................. 2 goggles .............................................. 2 gpm, fan ........................................... 29 graphite ................................... 37, 79 grease seal cap ..
Table of Contents Great Plains Manufacturing, Inc. row unit down pressure .................... 47 row unit shank .................................. 59 rpm, engine ...................................... 31 rpm, excessive ................................. 31 S safety decal ........................................ 6 safety equipment ................................ 2 safety information ............................... 1 safety symbol ..................................... 1 scraper gauge wheel ...............
122 YP4-6-825A3P 113-839A, marker ............................ 91 118-999B, manual ............................ 39 122-177D, tube .............................. 117 122-278S, scraper ................ 94, 117 129BXT824, bracket ...................... 117 13 mph ............................................... 3 20 mph ...................................... 3, 21 204-085M-A, manual .............. 49, 92 204-171A, coulter ............................ 93 204-172A, coulter ............................
401-652M Table of Contents Index Table of Contents Index 2015-01-26
Table of Contents Index Great Plains Manufacturing, Inc. Corporate Office: P.O.
